Multi-line expression suggestion for align

[yi-Xu-0100]

Multi-line expressions, e.g. \begin{align}..\end{align}. These are unsupported LaTeX commands for this project.
Can you add an option for replacing "align" to "matrix"?
This will help to show the code, not perfect, but good.

[osanshouo]

Thank you for a useful suggestion!

I confirmed that your method works, although, as you pointed out, the generated MathML is not perfect. It may be better than not-working so I've experimentally implemented it in version 0.2.1.

I think we should use linebreak and indentalign attributes, but Firefox (Gecko) lacks their supports. Therefore, this hack may be the best at present. I would like to revisit it if the situation changes.